Abstract: dimensions of QCC4A on component and on PCB Pad structure and size of SM-2, combination layout for SM , plane at the PCB bottom side with direct via (through) holes connection to the ground pads at the PCB , by very short PCB tracks and should be plated through to the bottom GND plane. Fig. 3: Structure , 's transient time (start up time) by measuring the transistor's bias voltage in modulation mode. The RF amplitude at the transistor's base-pin changes the DC level a little bit (5.10%). A higher RF amplitude ...